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Charging curve
3.7
The charger's charge status is indicated by one of the charge status LEDs
3.7.1 BOOST and REFRESH in ON position
With this setting, the charger delivers a 5-step charge curve IUoU + automatic weekly recycling BOOST:
BOOST, ABSORPTION, FLOATING + REFRESH, REBOOST.
V BOOST:
BOOST voltage (see section 3.4.4.1)
V FLOAT:
FLOATING voltage (see section 3.4.4.1: voltage with no BOOST)
T BOOST:
BOOST maximum duration (see table above – paragraph 3.4.4.1)
T ABS:
ABSORPTION maximum duration (see table above – paragraph 3.4.4.1)
BOOST phase:
Starts up automatically when the charger is turned on if the battery is flat. The current is then at maximum
output.
ABSORPTION phase:
Starts when the voltage has reached the maximum BOOST level. The current level starts falling.
These two phases combined last a maximum of TBOOST+TABS (depending on setting). If the current falls
below 20% of rated current, the FLOATING phase automatically kicks in. Duration and current intensity
depend on how charged the
FLOATING phase:
Starts after TBOOST or if output current has reached 20% of the charger's rated current. The voltage switches
to the FLOATING value and the rated current continues to drop.
REFRESH phase:
It is an automatic weekly cycle in order to optimize the battery life duration.
It will occur only after a complete recharge cycle (BOOST, ABSORPTION and FLOATING). The charger will
generate automatically a safe timed voltage step every 7 days even if REFRESH phase is off (see 3.7)
battery is.
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